Reversible oxygen vacancies doping in (La0.7,Sr0.3)MnO3 microbridges by combined self-heating and electromigration
Combination of electric fields and Joule self-heating is used to change the oxygen stoichiometry and promote oxygen vacancy drift in a freestanding (La,Sr)MnO3 thin film microbridge placed in controlled atmosphere. By controlling the local oxygen vacancies concentration, we can reversibly switch our...
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| Veröffentlicht in: | Applied physics letters 2015-05, Vol.106 (20) |
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| creator | Manca, Nicola Pellegrino, Luca Marré, Daniele |
| description | Combination of electric fields and Joule self-heating is used to change the oxygen stoichiometry and promote oxygen vacancy drift in a freestanding (La,Sr)MnO3 thin film microbridge placed in controlled atmosphere. By controlling the local oxygen vacancies concentration, we can reversibly switch our (La,Sr)MnO3-based microbridges from metallic to insulating behavior on timescales lower than 1 s and with small applied voltages ( |
| doi_str_mv | 10.1063/1.4921342 |
| format | Article |
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By controlling the local oxygen vacancies concentration, we can reversibly switch our (La,Sr)MnO3-based microbridges from metallic to insulating behavior on timescales lower than 1 s and with small applied voltages (<5 V). The strong temperature gradients given by the microbridge geometry strongly confine the motion of oxygen vacancies, limiting the modified region within the free-standing area. Multiple resistive states can be set by selected current pulses that determine different oxygen vacancies profiles within the device. Qualitative analysis of device operation is also provided with the support of finite element analysis.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.4921342</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Current pulses ; Electromigration ; Finite element method ; Heating ; Manganese oxides ; Oxygen ; Qualitative analysis ; Stoichiometry ; Temperature gradients ; Thin films ; Vacancies</subject><ispartof>Applied physics letters, 2015-05, Vol.106 (20)</ispartof><rights>2015 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c323t-18d9ba49582b40c1bc1178efa8c2c4765dcbec127d0f1066fbf3e5103941034f3</citedby><cites>FETCH-LOGICAL-c323t-18d9ba49582b40c1bc1178efa8c2c4765dcbec127d0f1066fbf3e5103941034f3</cites><orcidid>0000-0002-7768-2500</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Manca, Nicola</creatorcontrib><creatorcontrib>Pellegrino, Luca</creatorcontrib><creatorcontrib>Marré, Daniele</creatorcontrib><title>Reversible oxygen vacancies doping in (La0.7,Sr0.3)MnO3 microbridges by combined self-heating and electromigration</title><title>Applied physics letters</title><description>Combination of electric fields and Joule self-heating is used to change the oxygen stoichiometry and promote oxygen vacancy drift in a freestanding (La,Sr)MnO3 thin film microbridge placed in controlled atmosphere. By controlling the local oxygen vacancies concentration, we can reversibly switch our (La,Sr)MnO3-based microbridges from metallic to insulating behavior on timescales lower than 1 s and with small applied voltages (<5 V). The strong temperature gradients given by the microbridge geometry strongly confine the motion of oxygen vacancies, limiting the modified region within the free-standing area. Multiple resistive states can be set by selected current pulses that determine different oxygen vacancies profiles within the device. Qualitative analysis of device operation is also provided with the support of finite element analysis.</description><subject>Applied physics</subject><subject>Current pulses</subject><subject>Electromigration</subject><subject>Finite element method</subject><subject>Heating</subject><subject>Manganese oxides</subject><subject>Oxygen</subject><subject>Qualitative analysis</subject><subject>Stoichiometry</subject><subject>Temperature gradients</subject><subject>Thin films</subject><subject>Vacancies</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNotkFtLAzEQhYMoWKsP_oOALxbcmkmyt0cRb1ApeHlekmyypuwmNdkW--9NaV9mmOGbOZyD0DWQOZCC3cOc1xQYpydoAqQsMwZQnaIJIYRlRZ3DObqIcZXGnDI2QeFDb3WIVvYa-79dpx3eCiWcsjri1q-t67B1-HYhyLy8-wxkzmbvbsnwYFXwMti2S6DcYeUHaZ1ucdS9yX60GPenwrVY91qNwQ-2C2np3SU6M6KP-urYp-j7-enr8TVbLF_eHh8WmWKUjRlUbS0Fr_OKSk4USAVQVtqISlHFyyJvldQKaNkSk6wXRhqmcyCs5qlww6bo5vB3HfzvRsexWflNcEmyoUB5WRYVLxI1O1DJToxBm2Yd7CDCrgHS7CNtoDlGyv4Brsdntw</recordid><startdate>20150518</startdate><enddate>20150518</enddate><creator>Manca, Nicola</creator><creator>Pellegrino, Luca</creator><creator>Marré, Daniele</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-7768-2500</orcidid></search><sort><creationdate>20150518</creationdate><title>Reversible oxygen vacancies doping in (La0.7,Sr0.3)MnO3 microbridges by combined self-heating and electromigration</title><author>Manca, Nicola ; Pellegrino, Luca ; Marré, Daniele</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c323t-18d9ba49582b40c1bc1178efa8c2c4765dcbec127d0f1066fbf3e5103941034f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Applied physics</topic><topic>Current pulses</topic><topic>Electromigration</topic><topic>Finite element method</topic><topic>Heating</topic><topic>Manganese oxides</topic><topic>Oxygen</topic><topic>Qualitative analysis</topic><topic>Stoichiometry</topic><topic>Temperature gradients</topic><topic>Thin films</topic><topic>Vacancies</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Manca, Nicola</creatorcontrib><creatorcontrib>Pellegrino, Luca</creatorcontrib><creatorcontrib>Marré, Daniele</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Manca, Nicola</au><au>Pellegrino, Luca</au><au>Marré, Daniele</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reversible oxygen vacancies doping in (La0.7,Sr0.3)MnO3 microbridges by combined self-heating and electromigration</atitle><jtitle>Applied physics letters</jtitle><date>2015-05-18</date><risdate>2015</risdate><volume>106</volume><issue>20</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><abstract>Combination of electric fields and Joule self-heating is used to change the oxygen stoichiometry and promote oxygen vacancy drift in a freestanding (La,Sr)MnO3 thin film microbridge placed in controlled atmosphere. By controlling the local oxygen vacancies concentration, we can reversibly switch our (La,Sr)MnO3-based microbridges from metallic to insulating behavior on timescales lower than 1 s and with small applied voltages (<5 V). The strong temperature gradients given by the microbridge geometry strongly confine the motion of oxygen vacancies, limiting the modified region within the free-standing area. Multiple resistive states can be set by selected current pulses that determine different oxygen vacancies profiles within the device. Qualitative analysis of device operation is also provided with the support of finite element analysis.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4921342</doi><orcidid>https://orcid.org/0000-0002-7768-2500</orcidid></addata></record> |
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| language | eng |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics Current pulses Electromigration Finite element method Heating Manganese oxides Oxygen Qualitative analysis Stoichiometry Temperature gradients Thin films Vacancies |
| title | Reversible oxygen vacancies doping in (La0.7,Sr0.3)MnO3 microbridges by combined self-heating and electromigration |
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